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Fiverr Pro
English
$
USD
I will do api integration, payment gateway and webhook setup
Aqib S.
Level 2
4.8
4.8
About this gig
API Integration, Payment Gateways & Webhooks
I connect your software to the services it depends on - cleanly, securely, and built to stay running. 7+ years, 900+ deployments, and you work directly with the engineer who builds and maintains the integration.
What I integrate:
- REST & third-party API integrations (CRMs, SaaS tools, internal systems)
- Payment gateways - Stripe, PayPal, and checkout/subscription flows
- Webhooks with verification, retries and idempotency (no duplicate charges)
- OAuth and token-based authentication
- Data sync between platforms, with mapping and validation
How I engineer (every order):
- Defensive code - input validation, error handling, retries, graceful failure
- Secrets and API keys in environment variables - never hardcoded
- Webhook signatures verified; idempotency keys to prevent double-processing
- Logging so you can see every request, response and failure
- Tested against the live/sandbox API before delivery, with short handover docs
Tell me which systems you need connected and what should happen between them, and I'll scope it precisely.
Get to know Aqib S.
Aqib S.
Senior Full Stack Developer : PHP, Laravel, Python and AI Automation
Level 2
- FromPakistan
- Member sinceNov 2017
- Avg. response time1 hour
- Last delivery2 days
Languages
Urdu, English, French, German
7+ years, 900+ deployments. I personally build and ship production-grade web, backend, and automation systems. You work directly with the engineer for defensively written, maintainable architecture.
Expertise:
• Backends: PHP/Laravel, Python, MySQL, REST APIs
• WordPress: Hardening, performance & scaling
• AI/Automation: Chatbots, SaaS tooling, APIs
• Cloud: AWS setup, migration & security
Workflow: Scoped requirements → architecture → regression-tested delivery. Send the problem; I'll return a secure, production-ready solution.
Among my clients
Sonoran Sea Resort
Hospitality
My Portfolio
Other Software Development Services I Offer
FAQ
Which APIs and services can you integrate?
Most REST and third-party APIs - CRMs, SaaS tools, payment providers, and internal systems. If it has an API and documentation, I can almost certainly connect it. Send the docs and I'll confirm.
Do you handle Stripe / PayPal and subscriptions?
Yes - one-off payments, checkout flows, and recurring subscriptions, including the webhooks that keep your records in sync. I test in sandbox first, then switch to live
How do you keep my API keys and webhooks secure?
Keys and secrets live in environment variables, never in the code. Incoming webhooks are signature-verified, and I use idempotency keys so a retried event can't double-charge or duplicate data
What do you need from me to start?
API documentation, the relevant credentials (sandbox is fine to begin), and a plain description of the data flow you want. I confirm exact scope before the order starts.
What's the difference between Basic, Standard and Premium?
Basic is one API/endpoint connection. Standard is a payment gateway or multi-endpoint integration with webhooks and error handling. Premium is a full multi-service system with retries, idempotency and documentation
What if something breaks after delivery?
Each tier includes revisions within the agreed scope, and I offer a 30-day support extra for changes on the provider's side (e.g. an API version update).
Reviews
27 reviews for this Gig
| (22) | ||
| (4) | ||
| (1) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
B benoitlevesque5
United States
Excellent work like always! I have worked with Aqib for several projects and he always deliver with very high standards. Very satisfied with his work!
$200-$400
Price
6 months
Duration
Helpful?D dennisooi253
Singapore
Outstanding work.
Up to $50
Price
1 day
Duration
Helpful?I ianfrost1
United Kingdom
Excellent will use again
$50-$100
Price
1 day
Duration
Helpful?H hfdavid
United Kingdom
Great help as always!
$200-$400
Price
1 day
Duration
H 
Seller's Response
Helpful?N 
nabiarshad
United Kingdom
Although, some work was not done as expected but most was done. thanks
Up to $50
Price
7 days
Duration
Helpful?
Reviews
27 reviews for this Gig
| (22) | ||
| (4) | ||
| (1) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
B benoitlevesque5
United States
Excellent work like always! I have worked with Aqib for several projects and he always deliver with very high standards. Very satisfied with his work!
$200-$400
Price
6 months
Duration
Helpful?D dennisooi253
Singapore
Outstanding work.
Up to $50
Price
1 day
Duration
Helpful?I ianfrost1
United Kingdom
Excellent will use again
$50-$100
Price
1 day
Duration
Helpful?H hfdavid
United Kingdom
Great help as always!
$200-$400
Price
1 day
Duration
H Seller's Response
Helpful?N nabiarshad
United Kingdom
Although, some work was not done as expected but most was done. thanks
Up to $50
Price
7 days
Duration
Helpful?
